An EDI standard is a definition of the structure of a data interface, or interface for short. An EDI standard may describe officially standardized structures, such as EDIFACT, X12 or VDA, as well as proprietary, user-defined structures.

Data models

A data model is a syntax-neutral description of the structure and content of a commercial document or of its components.

XML Schemas

Although GEFEG.FX can be used to develop all kinds of XML schemas, its emphasis is on schemas for business data. GEFEG.FX supports the W3C schema technology.